This container contains a Telegram integration to notify about Docker events.

This service notifies about container start, stop, restart events, and changes of Docker healthcheck status. If you wish you can add more event notifications in templates.js file.

This branch was created to patch some security vulnerabilities as well as adding builds for linux/arm64 and linux/arm/v7.

If you spot any problems, feel free to fix it and open a pull request or open a new issue.

1. Set up a telegram bot and get the Bot Token. then add the bot to a group and make it admin and extract the Chat ID.

2. Run a container:

# docker run
docker run -d --env TELEGRAM_NOTIFIER_BOT_TOKEN=token --env TELEGRAM_NOTIFIER_CHAT_ID=chat_id --volume /var/run/docker.sock:/var/run/docker.sock:ro ghcr.io/ivorsmorenburg/docker-telegram-notifier

# docker compose
version: "2.2"

services:
  notifier:
    image: ghcr.io/ivorsmorenburg/docker-telegram-notifier:main
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro # for local instance
      # - ./certs:/certs # for remote instance
    environment:
      # How to create bot: https://core.telegram.org/bots#3-how-do-i-create-a-bot
      # How to get chat id: https://stackoverflow.com/questions/32423837/telegram-bot-how-to-get-a-group-chat-id/32572159#32572159
      TELEGRAM_NOTIFIER_BOT_TOKEN:
      TELEGRAM_NOTIFIER_CHAT_ID:
      # optional args
      # TELEGRAM_NOTIFIER_TOPIC_ID: # Can be provided to specify a topic withing the group
      # ONLY_WHITELIST: true

#  example:
#    image: hello-world
#    labels:
#       telegram-notifier.monitor: true  # always monitor
#       telegram-notifier.monitor: false # never monitor
#       # no label = monitor only when not using whitelist
#    # example docker healthcheck
#    healthcheck:
#      test: curl -sS http://127.0.0.1:8545 || exit 1
#      interval: 30s
#      timeout: 10s
#      retries: 3

Respects Telegram Rate Limit using BottleNeck, you can provide some optional enviorment variables

  BN_RESERVOIR | 2 ;
  BN_RESERVOIR_INCREASE_INTERVAL | 2000;
  BN_RESERVOIR_REFRESH_INTERVAL |  60 * 1000;
  BN_RESERVOIR_INCREASE_AMOUNT | 2;
  BN_RESERVOIR_MAX_BUFFER_SIZE | 50 ;
  BN_MIN_TIME | 5000  ;
  BN_MAX_CONCURRENT | 1;
  BN_ID

Show more logs and traces

  DEBUG | false;

You can suppress notifications from certain containers by adding a label --label telegram-notifier.monitor=false to them.

If you want to receive notifications only from whitelisted containers, set --env ONLY_WHITELIST=true environment variable on the notifier instance, and --label telegram-notifier.monitor=true label on the containers you want to monitor.

By default notifier connects to a local docker instance (don't forget to specify --volume /var/run/docker.sock:/var/run/docker.sock:ro for this case). But if you have monitoring and the service on the same host, you will not receive notifications if the host goes down. So I recommend to have monitoring separately.

This container is based off the container by poma, originally an idea of arefaslani.